Lubeicating device



Jan. 9, 1923. 1,441,335

D. F. FESLER. x LUBRIcAI-ING DEVICE. I ORIGINAL FILED Nov. 18. 1918 @www 5 Patented Jan. 9, 1923,

UNITEDy stares PATENT OFFICE.

DOUGLAS F. FSLER, OF QHICAGO, ILLINOIS, ASSIG'NOR TO THE IBASSICKk MANUFAC- TUBING COMPANY, OF CHICAGOLILLINOIS, A CORPORATION OIE' DELAWARE.

LUBRIGATING DEVICE.

Original application filed November 18, 1918, Serial No. 262,930, now Patent No. 1,387,843, dated August 16, 1921. @Divided and this application led May 28, 1920, Serial No. 384,932. Renewed May 11,

1922. Serial lo. 560,253.

T 0 a-ZZ whom t may conce/M1,

Be it known that I, DOUGLAS F. Fireman, acitizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain newv and useful Improvement in Lubricating Devices, of which the followingis a full, clear, con cise, and exact description, `reference being had to the accompanying drawings, forming a Yart of this specification.

y invention relates t improvements in a lubricating device, and is especially concerned with means for supplying lubricant under pressure to bearings or other surfaces to be lubricated. My invention comprises means whereby lubricant under high pressure canvbe initially supplied to the surfaces to be lubricated and other means for thereafter supplying lubricant to said surfaces at a' considerably reduced pressure.

The objects of my invention are:

1st. To provide apparatus for performing the above functions, comprising in general a grease cup having a plunger thereina spring confined between one end of the grease cup and the plunger, means for supplying lubricant under pressure to the space between the other sideof the plunger and the opposite end of the grease cup, andineans for conducting lubricant from said space to the bearing or surface to be lubricated, the

means for supplying lubricant to said-spacev under pressure comprising a grease gun or compressor, such as that disclosed in my copending application, Serial No, 262,93)led November 18, 1918, of which this' application constitutes a division, and which comprises a discharge nozzle and means for detachably connecting the discharge nozzle the grease gun with the grease cup,

2nd To provide a system of the character described, in which means is provided for supporting theplunger against the pressure of the lubricant when the grease cup is completely lilled by lubricant under pressure, so that additional pressure can be exerted upon the lubricant in order to force it into theV bearing with which the grease cup is connected under an extremely high pressure, whereby a supply of lubricant is insured to every point of contact of the bearing.

8rd. To provide a grease cup of novel construction forming a part of the above-described system which is simple in construction and economical to manufacture; and

4th. 'Ilo provide a grease cupof the type described and having means for indicating the amount of lubricant which it contains.

ther objects will appear as this description progresses, reference being had to the `accompanyingdrawings, in which Figure l is a side elevational view of my improved lubricating device; Figure 2 is a bottom view thereof; and

Figure 3 is a central longitudinal section.

Throughout the several views, similar reference characters will be used for referring to similar parts. t

My improved lubricating device comprises a conduit 5, the outer end of which is provided with screw threads 6 by means of which the device can be secured to a bearing to be lubricated The inner end of the conduit 5 is reduced in diameter, as'shown at 7 and supports the cup leather 8 and the follower 9, which together form a plunger. The extreme end of the tubular member 5 is swagedover as shown at 10 to hold the cup leather and follower in position. A preferably cylindrical receptacle l1 is slidably mounted upon the plunger and comprises an end closure 12 having an opening formed centrally thereof and `carrying' a` tubular member i3, the bore of which registers with the opening in the end closure. The outer end of the tubular member 13 is flanged over, as shown at 14, to provide a seat for the closure 15. The closure 15 is yieldingly held against the seat iii by means of a spring 18, the inner end of which abuts against the pin 17. The ends of the pin 17 project outwardly beyond the walls ofthe tubular member 13 to' 3rovide meansr for making a detachable connection with the coupling member of u lubricant conm sor in the manner illuetrated and deseri ed in niv Cfu-pending application referred to above.

The plunger is moved lon'n rd the end elosure l?, of the lubricant receptacle bv ineens of e sl'iirulV spring' i8. which is confined between the plunger and a disk 1,79. nf'hieh in turn is supportedby 'lugs QOftiki-iiel iiinfaildly from the loiver end ofthe reee'ptcle.

For supplying lubricant to a bearing to which mv lubricating; de-viee is secured, the disrharpge conduit efe lubricant compressor, similar to that shown in my (3o-pending applieution above referred to, is eonne'tedvitli the tubular nieinbe'r 13 and the compressor is ':ietf'uvztl to 'subject "t'he lilb'ri'riifnt to pressure. i

The'z luliiixeiiit thereiipdii kifloivsf through the discharge conduit of the Comp1." "01', the uplmeA Wambel; past, the @los le mme. tiene web@ fe @le Py, meer@ CI. uf 15. @i the Tub peut'. "The is so adjusted l, f w .s he' plunger, tliis movement continu the been here have usedy they Wordsy flipper l l," orSi11g11a1'irlein the Steele- @501.1315 1S te be Clearly uudersteod that these "expressi1i s":ire inerelfv ifreletive ind marking it with ai 'b ai ng', of, a Secured@ he @wel 1d plunger provided 'with an; opendT fr) v 1 conduit suid receptacle having an end Closure, n` tubular member secured to said end closure and disehzirgin therethrough, the outer end of said tubular member' being provided with ineens for automatically preventingY lubri- Cuut from {iowing outwardly therethrough and means for making a detachable connectin *with* :i lubricant "omp'regfsr, 'and a springv confined between said plunger and u portion of said receptacle for moving the end closure o said receptacle toward seid plunger.

2. The combination with a Conduit for nizi'kinfu Connection with a bearing', of a plunger secured to the free end of said oondi't; seidY plunger beingfprovided'with en opening reoiriii'nuiicutili@ with eoriduit, a receptacle slidablniounted o'nsad'plunger, said receptacle having an end elosure, aiy tubular Ineln'be-ri` secured t`o siid elsui're anfl'l, @1i-argille herethmehth@'trf f1 of Se@ tiene'membefbiie provided w1 11' digen@ fer eesiemtielly luieren@ille hibri- Cemt. from owme, Qutlv'erdy therethrough and' mea-ns for' yKrailling a' detaehgble eon'neei a'lubiie'ant, Compresor, 1und e' Sedile' 'ff @Qfieete eed fil'elfef 0f' Seid receptacle toward said plunger.

3. The eornbinity y vith :i eonduit for niuling ,it e'onnlegction `"withaibearing", `of a plunger s'elxwred to the free end oilV said "Condui'tllsuid being provided'ivith'ith openinglY coniiiiuniefitiiig* With" sind conduit",y al' feyeptuelte slidibly mounted on said plunger, seid' reeepthcleA having an endwelos'ure, :fr iibulur seeuredt'o siiid end VClosure :1I/1dE ,"dischztrf'ri'iig'l` therethrough; the 'outer "end of said tubul ifinernber"beiiigipifovided "with means for utoin'tielly'preventing Iubri cant irotiivlo'vvingg 'outivrdly therethrough afnd'mean's for niilriiig" 'detaehitble Conner;- tibn iviftlie lubri'e'eiit'boinpreseor, and means for niovi'iig thelend closure of'sstid vre'eepttcle tifvvardsaridpluiigerf"' Tie' eomlointion. ,with :t conduit for '1g it ridiine'etioiiwitli a, beztringfoft i' secured Itothe ."ireey endof said coni sziidfplungi" being provided with 'ein openinef eoiiilniinieetiiig' with `said'condiiitfi reeeptuele'slidablv iuo'iiintvei|r on sai d plunger,

said' r'eeptelelewhaving' en en@` Closure, a tubular ber ee \c l to seid endI Closure luthe outer end y K y A vided ywith me s l l able eoniiectiou lubriea ,Eind ineens 'for ng'the end losure ofv sfglv reeepteele tivard-seid plunger.

The. Combination with ay Conduit for Cronduseting'lubi ',ntfto it bearing, of a plunger on'the free Vend isztidncpnduit, i `recepta'ele slida'ble4 on seid plungerfreansf for edueti'ng 'lubrieztnt under pressure""t`o a, [beftvveet plunger `and 4e 'endl` or Sauf reaped@ are fr '11eme-Se@ end toward said plunger, the said means being located on the side of said, plunger opposite the side contacted by lubricant.

6. The combination with a conduit for conducting lubricant to a bearing, a plunger on the free end of said conduit, a receptacle slidable on said plunger, means for conducting lubricant under pressure to the space between said plunger and one end of said receptacle, and a spring surrounding said Conduit between Said plunger and the bearing for urging said receptacle end t0- Warcl said plunger.

In Witness whereof, I hereunto subscribe my name this 21st clay of May, 1920.

DOUGLAS F. FESLER.

Witnesses ALBIN C. AI-ILBERG, ANDREW WINTERCORN. 

